Internal-combustion engine.



L. O. MARTIN. INTERNAL COMBUSTION ENGINE. APPLICATION FILED JAN.26, 1912.

1 $373,770. Patented Sept. 23, 1913.

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UNITED STATES PATENT orator].

LUTHER 0. MARTIN, 0F PARKEEKQBUEG, WEST VIRGINIA.

INTERNAL-COMBUSTION ENGINE.

To allwhom it may concern: Be it known that I, LUTHER O. MARTIN, a citizenof the United States, residing at Parkersburg, in the. county of \Vood and State of West Virginia, have invented certain' new and useful Improvements in Internal-Combustion Engines, of which the following is a specification.

My invention relates to internal combus" tion engines of the type that include a plurality of explosion cylinders and employ a single rotatable valve to control the inlet and exhaust of gases to and from the cylinders, and has particular reference to an engine of this character provided with a novel lubricating system, adapted to not only lubricate the valve but the driving means therefor.

An important object of this invention is to provide a lubricatin system of the above mentioned character, W ich is simple in construction and continuous and reliable in operation.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts'throughout the same, Figure l is a .front side view of the engine, and, Fig. 2 is a central vertical longitudinal sectional view through thesame.

In the drawings,

wherein is illustrated a 'pfeferred embodiment of my invention, the 3, and 4 designate explosion cylinders, which are preferably vertically disposed. These explosion cylinders are connected with the/usual crank-case, (not shown). Disposed to reciprocate within each explosion cylinder is a piston 6, connected with a pitman 7, as shown. The explosion cylinders are surrounded by a jacket 8, providing a water space 9, as shown.

The numeral 12 designates spark plugs. The numeral 18 designates a valve hous' ing, which is suitably mounted plosion cylinders and is preferably provided with a water s ace 1%), having free eommunipered or frusttoconical opening 20, for receiving a rotatable tapered valve 28, provided with transverse openings 29, adapted Epipe 53 i and discharges upon the hcvclcd registration with shown) which The valve to be moved into and out of inlet and exhaust ports (not lead into the explosion cylinders. 28 is held against Specification of Letters Patent. application filed January 25, 1012.

i that the U-shapcd upon the exlongitudinal inovemcnt in one direction by a set screw 32, engaging a l pipe 5t).

Patented Sept. 23, 1913.

Serial No. era 15a head 33, which is rigidly connected with the valve housing 18. At its opposite end the valve 18 is provided with a reduced extension 37, upon which is rigidly mounted a beveled gear 41, engaged by a beveled gear 452, which is rigidly mounted upon the upper end of a vertical actuating shaft -13. the beveled gears 41 and 42 are disposed within a housing or shell 41, rigidly eonnected with the valve casing 18, as shown.

The numeral 42* designates a set screw operating through a screw-threaded opening in the housing or shell ll and engaging the reduced extension 37 of the valve 48- The function oi this set screw is to positively limit the longitudinal movement of the valve 28 in one direction.

The numeral 4 1: designates an oil force pump, which is geared to the actuating shaft 43 throu h the medium of bevel-gears 4'5 and 4h. This pump draws oil from an oil supply tank 47, through the medium of a connecting pipe i8 and discharges the oil th'rcmgh a pipe 49. The head 18 is provided through its upper portion with a series of properly spaced U -shapcd openings 50. These U-shaped openings have their upper ends extending through the outer surface of the head 18 and. their inner horizontal connecting portions leading into the opening 20, as shown. The pipe .19 leads into the lirst U-shaped opening 50 to the right, as shown at 51. These U-shaped openings are connected by inverted approximately U-shaped conduits 52. Leading into the first U- shapcd opening. 50 to the left. as shown at 53, a'return pipe 54, which passes into the shcll H, as shown at 55. it is thus seen openings 50 and the pipes 52 form in ell'evt, a perforated conduit for supplying oil lo the valve A pipe Til} connects the tank i? and shell l 1..

The operation of the engine is as follows:---\Vhen the engine is operating, the pump i l will draw the oil or lubricant from the tank 17 through pipe 48 and force the same ,thrcugh pipe 49 into the pipes 32 and ports fill, which fornr in ctl'ect a pcrlm'aled conduit, to supply the oil to the valve 28. The oil is then forced through the return gears ll and i2 within the shell or housing ll, which collects the same so that the oil may he returned to the tank =17 through the it is thus seen that the circulation of the oil or other lubricant is continuous and the. same not only lubricates the valve but the driving Iheans therefor. This lubri cant is effected without any unnecessary waste of the lubricant.

It is to be understood that the form of my invention herewith shown and described, is to be, taken as a preferred example of the same and that certain changes in the shape, size, and arrangement of parts may be resorted to without departing from the 'spirit of the invention or the scope of the subjoined claims.

Having thus described my invention, I claim r 1. In an engine of the character described, a plurality of cylinders, 21 head connected therewith and provided with an axial opening having means of communication with the interior of the cylinders, a rotary valve disposed within the axial opening, a shell connected with the head, driving means for said rotary valve including gears disposed within the shell, a perforated OOIldllltifOi supplyin oil to the rotary turn con uit connected with the perforated valve, and a re--- Y conduit and discharging the oil hack into said shell to lubricate the elements therein.

2. In an engine of the character described,

a plurality "of cylinders, pistons operating therein, a head connected with thecylindersand provided with an axial openinghaving ,means of communication with. the interior of the cylinders, a rotary valve disposed within the axial opening, a shell connected with the head, driving means for said rotaryyalve 1 including gears disposed within the shell, a supply tank having means of communication with said shell, communication with upply tank, aperforated conduit to supply theEoil to the rotary valve and'having means of eommunication with the pum a return pipeconnected with he perforate conduit and discharging into the shell to lubricate'the elements there- 7 in and means to operate the pump.

.ln testimony whereof I aflix my signature in presence of two witnesses.

LUTHER O. MARTIN Y Witnesses:

"H. R. D. BUSSEY, J. V, LANcFn'a.

atgu np having means of f 

